Automotive

Yokogawa understands the unique demands of automotive and transportation. As vehicle technology continues to advance in the areas of safety, environmental friendliness, and comfort, Yokogawa test & measurement instruments continue to evolve and advance to support the increasingly complex electronic vehicle components, systems, and innovations. Yokogawa diligently provides up-to-the-minute technologies in Body Control, Safety Systems (ABS, Airbags, Rollover Prevention), Drivetrain performance, development, ECU (Electronic Control Unit), In-Vehicle Entertainment and various others. With foresight, Yokogawa also offers measuring instruments that will lead you into the future in five key areas: Hybrid Electric Vehicle (HEV), Fuel Cells, In-vehicle LAN, Vehicle components and Intelligent Transport System (ITS) equipment. Yokogawa also offers compliance test solutions such as CAN, the de-facto standard, and Advanced Power Analyzers, such as the SB5000 Serial Bus Analyzer with advanced functions for Flex-Ray technology, the protocol for incoming standards. These are just a few of the ways Yokogawa diligently strives to meet your evolving needs.

Between 16 to 18% of the total charge of an electric car is consumed as electric drive system losses. Electric and hybrid car manufacturers therefore need to accurately evaluate motor and inverter control in order to achieve higher precision and greater efficiency. Additionally, the accurate analysis of inverter waveforms without interference from switching noise is a key part of evaluating the motor drive circuit.

Between 16 to 18% of the total charge of an electric car is consumed as electric drive system losses. Electric and hybrid car manufacturers therefore need to accurately evaluate motor and inverter control in order to achieve higher precision and greater efficiency. Additionally, the accurate analysis of inverter waveforms without interference from switching noise is a key part of evaluating the motor drive circuit.

From R&D to manufacturing and compliance testing, measurement of powertrain efficiency, harmonic content, battery charge/discharge process and ECU communication buses not only require progressively greater accuracies but also consistency in measurement over the specified ranges and conditions.

Range anxiety – the worry that that the battery will run out before a destination or charging point is reached – is among the major barriers for mainstream adoption of electric vehicles. As charging infrastructures still need to be improved, battery efficiency in charging and regenerative braking systems are important.

With the increased demand in electric-hybrid vehicles, the electromechanical designs of in-vehicle systems are becoming more sophisticated and there has been shift to high efficiency brushless direct current (BLDC) motors that offer better speed vs torque characteristics, dynamic response and lifespan.

If a product uses power, then power consumption and power quality measurements must be made as part of product design and test. These measurements are essential to optimize product design, comply with standards and provide nameplate information to customers.
This article will discuss best practices for making these measurements, starting with power measurement basics and proceeding to the types of instruments and associated components typically used to make measurements. The article will conclude with real-world examples, which apply the information imparted earlier in the article to solve practical measurement problems. Although most of us have been exposed to basic power measurement equations, a primer is helpful to summarize this information and to show how it applies to product design and test.

There are several factors for a user to consider when using an IEPE accelerometer, particularly when used with newly available integrated signal conditioner/data acquisition systems. Correctly managing these factors will help the user avoid erroneous data from their IEPE accelerometer and ensure the quality of the measurement data is at the level they expect and require.

One of the main responsibilities of engineers and technicians is data analysis, and this article will show how multi-touch technologies can be used to improve the performance of this and other related tasks.

The request for lower uncertainties in power measurements are increasing,especially in the transformer industries. Their role is to ensure that the electricity is distributed in an efficient and reliable way.

The Yokogawa DL850E is a waveform measuring and recording instrument with eight slots for signal conditioning and data acquisition modules. In addition to high-speed signal inputs up to 100 MHz sampling rate, the DL850E has features for real-time signal processing that provide advantages to scientists and engineers trying to observe complex systems.

This white paper describes the WT1800, a precision power analyzer that has been replaced by the WT1800E, a unit with numerous improvements including better accuracy. Please visit the WT1800E product page to learn more about the WT1800E.

To keep pace with the increasing speed of switching devices in inverters, Yokogawa has developed the WT1800 precision power analyzer with 10 times faster sampling speed and 5 times wider frequency bandwidth compared with previous models. Its basic accuracy is 0.15% and the frequency bandwidth of voltage and current is 0.1 Hz to 5 MHz (-3 dB, Typical) including the DC component. With up to six inputs, a single WT1800 unit can measure the efficiency of three-phase inverters. In addition, the high-speed data capturing mode allows the WT1800 to measure transient power. This paper describes the high-speed, real-time power measurement technologies underlying these functions.

This white paper describes the WT1600 precision power analyzer, a model that has been discontinued and replaced with the WT1800E. Please visit the WT1800E product page for more information regarding the WT1800E.

We have developed the WT1600, a high-precision, wide-bandwidth power meter. The WT1600 can measure DC and AC signals from 0.5 Hz to 1 MHz with a basic power accuracy of 0.1%. With the maximum of six input elements installed, a single WT1600 can measure the efficiency of a three-phase inverter. In addition to the functions of conventional power meters, it has wider ranges and various functions including waveform display. This paper gives an outline of the WT1600.

Automotive Manufacturing – Measuring for efficiency

Two key criteria for successful development and mainstream adoption of (hybrid) electric vehicles are - reliability and driving range. The lower the loss in electric systems, the longer their lifetime and the more efficient the drivetrain, the longer the driving range. But as powertrains, charging systems, infotainment and safety systems grow more sophisticated in the ear of the connected car, hybrid and electric vehicle development requires mechatronic analyses of unprecedented certainty and flexibility.

Typically, a portable scope or test tool is used by an engineer to diagnose faults on a production line in real-time, or to carry out tests in a workshop. But how can faults be detected and diagnosed when they are intermittent and the engineer needs to be somewhere else? On the other hand, a portable data logger can capture lots of data, including the faults over a period of time, but requires the data to be searched and analysed later to make sense of it.

The WTViewerE is a powerful software that supports remote analysis and control of multichannel measurements from the WT series of Yokogawa power analyzers. In addition to real-time control of remote measurements in multiple formats and customizable layouts, the latest version of the software allows any 4 Yokogawa power analyzers regardless of configuration to be synchronized for multi-unit measurements. This allows for sophisticated computations for larger applications that may need more than one power analyzer.

As a one of the largest motorcycle manufacturers, Triumph confirms every bike is precision-engineered to deliver a complete riding experience. To ensure higher performance and efficiency of the motorcycle powertrain, Triumph test their engines under rigorous conditions, measuring and analyzing a vast array of parameters under varying conditions, from sensors configured and positioned all around a bike.

As the manufacturer of the world's first drone to combine Vertical Take Off and Landing (VTOL) and forward flight, ATMOS UAV needed to perform highly accurate motor system testing, while keeping the test time as short as possible. Discover how Marlyn exceeded all expectations in terms of reliability and was successfully launched in an extremely competitive market.

In this customer case story, Reiner Schultheiss; electrical engineer at Michelin tire manufacturing, reflects on his time with the company and explains how the portable Yokogawa DL350 ScopeCorder was welcomed to Michelin and how it ensures quality at the tire manufacturing process. In this customer case story, Reiner Schultheiss; electrical engineer at Michelin tire manufacturing, reflects on his time with the company and explains how the portable Yokogawa DL350 ScopeCorder was welcomed to Michelin and how it ensures quality at the tire manufacturing process.

In this video we review the major features of the DL350 showcasing its portability, functionality, and operability. This device features battery power, 18 signal conditioning input modules, and touchscreen access to enhanced triggers, math, and analysis.

How-tos

In this video, Dami Ashebu, an Application Engineer with Yokogawa Test and Measurement discusses how a DL850EV data acquisition system can be used to gather various analog and serial bus data for systems validation and reverse engineering in the automotive industry.

In this video we demonstrate the GPS data logging capability of the DL350 Portable ScopeCorder. Recording Position, Velocity, and Altitude simultaneously with accelerometers or other analog inputs is simple with the DL350's built-in features.

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